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环境化学  2015 

铋膜丝网印刷电极现场快速测定工业废水中Pb2+、Cd2+

Keywords: 丝网印刷电极,铋膜,阳极溶出伏安法,重金属离子,工业废水

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Abstract:

采用丝网印刷电极,通过同位镀铋膜阳极溶出伏安法对工业废水中重金属Pb2+和Cd2+进行了快速测定,考察并优化了镀铋膜及测定金属离子的实验条件.实验结果表明,Pb2+和Cd2+在铋膜电极上可得到灵敏的溶出峰,在优化的实验条件下Pb2+和Cd2+在50—500μg·L-1范围内呈现良好的线性关系,相关系数分别为0.9947、0.9969,检测限分别为4.45μg·L-1和2.98μg·L-1.测定了工业废水中的Pb2+、Cd2+,结果与ICP-MS方法一致.

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